Set up BCV

[Goooler]

Easy to track API changes.

https://github.com/Kotlin/binary-compatibility-validator

[TomerAberbach]

Thanks for the idea!

We're not gonna merge this just yet because we need to figure out how it would fit into our code generation workflow

[Goooler]

• The API check tasks has been covered by ./scripts/lint.
• We have to run ./gradlew apiDump to reflect public APIs after each related change.

[TomerAberbach]

Yup, makes sense, but we'll need to figure out on our end how/when we want to run ./gradlew apiDump. The release process is automated based on changes to the Stainless code generator, we don't want someone to have to manually run ./gradlew apiDump. We'd want it to happen to automatically for major version bumps

We'll look into it